To begin deriving the equation of the line y = 6x, Matt drew a triangle with vertices
(0, 0), (1, 0), and (1, 6). A similar triangle with which of these vertices would allow him
to continue with his derivation?

a. (-6, -1), (-6,-4), and (-24, -4)

b. (-1,-6), (-4,-6), and (-4,-24)

c. (1,-6), (4,-6), and (4,-24)

d. (6,-1), (6,-4) and (24,-4)

Could answer every question with steps

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?